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Ahmad A, Rabbani G, Zamzami MA, Hosawi S, Baothman OA, Altayeb H, Akhtar MSN, Ahmad V, Khan MV, Khan ME, Kim SH. An affordable label-free ultrasensitive immunosensor based on gold nanoparticles deposited on glassy carbon electrode for the transferrin receptor detection. Int J Biol Macromol 2024; 273:133083. [PMID: 38866289 DOI: 10.1016/j.ijbiomac.2024.133083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 05/31/2024] [Accepted: 06/09/2024] [Indexed: 06/14/2024]
Abstract
In recent decades, there has been a concerning and consistent rise in the incidence of cancer, posing a significant threat to human health and overall quality of life. The transferrin receptor (TfR) is one of the most crucial protein biomarkers observed to be overexpressed in various cancers. This study reports on the development of a novel voltammetric immunosensor for TfR detection. The electrochemical platform was made up of a glassy carbon electrode (GCE) functionalized with gold nanoparticles (AuNPs), on which anti-TfR was immobilized. The surface characteristics and electrochemical behaviors of the modified electrodes were comprehensively investigated through scanning electron microscopy, XPS, Raman spectroscopy FT-IR, electrochemical cyclic voltammetry and impedance spectroscopy. The developed immunosensor exhibited robust analytical performance with TfR fortified buffer solution, showing a linear range (LR) response from 0.01 to 3000 μg/mL, with a limit of detection (LOD) of 0.01 μg/mL and reproducibility (RSD <4 %). The fabricated sensor demonstrated high reproducibility and selectivity when subjected to testing with various types of interfering proteins. The immunosensor designed for TfR detection demonstrated several advantageous features, such as being cost-effective and requiring a small volume of test sample making it highly suitable for point-of-care applications.
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Affiliation(s)
- Abrar Ahmad
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21452, Saudi Arabia
| | - Gulam Rabbani
- IT-medical Fusion Center, 350-27 Gumidae-ro, Gumi-si, Gyeongbuk 39253, Republic of Korea.
| | - Mazin A Zamzami
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21452, Saudi Arabia
| | - Salman Hosawi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21452, Saudi Arabia
| | - Othman A Baothman
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21452, Saudi Arabia
| | - Hisham Altayeb
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21452, Saudi Arabia
| | | | - Varish Ahmad
- Department of Health Information technology, The Applied College, King Abdulaziz University, Jeddah 21452, Saudi Arabia
| | - Mohsin Vahid Khan
- Department of Biosciences, Integral University, Lucknow, 226026, India
| | - Mohammad Ehtisham Khan
- Department of Chemical Engineering Technology, College of Applied Industrial Technology, Jazan University, Jazan 45142, Saudi Arabia
| | - Se Hyun Kim
- School of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
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Karkhaneh F, Sadr ZK, Rad AM, Divsalar A. Detection of tetanus toxoid with iron magnetic nanobioprobe. Biomed Phys Eng Express 2024; 10:045030. [PMID: 38479000 DOI: 10.1088/2057-1976/ad33a8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 03/13/2024] [Indexed: 05/26/2024]
Abstract
Diagnosis of diseases with low facilities, speed, accuracy and sensitivity is an important matter in treatment. Bioprobes based on iron oxide nanoparticles are a good candidate for early detection of deadly and infectious diseases such as tetanus due to their high reactivity, biocompatibility, low production cost and sample separation under a magnetic field. In this study, silane groups were coated on surface of iron oxide nanoparticles using tetraethoxysilane (TEOS) hydrolysis. Also, NH2groups were generated on the surface of silanized nanoparticles using 3-aminopropyl triethoxy silane (APTES). Antibody was immobilized on the surface of silanized nanoparticles using TCT trichlorothriazine as activator. Silanization and stabilized antibody were investigated by using of FT-IR, EDX, VSM, SRB technique. UV/vis spectroscopy, fluorescence, agglutination test and ELISA were used for biosensor performance and specificity. The results of FT-IR spectroscopy showed that Si-O-Si and Si-O-Fe bonds and TCT chlorine and amine groups of tetanus anti-toxoid antibodies were formed on the surface of iron oxide nanoparticles. The presence of Si, N and C elements in EDX analysis confirms the silanization of iron oxide nanoparticles. VSM results showed that the amount of magnetic nanoparticles after conjugation is sufficient for biological applications. Antibody stabilization on nanoparticles increased the adsorption intensity in the uv/vis spectrometer. The fluorescence intensity of nano bioprobe increased in the presence of 10 ng ml-1. Nanobio probes were observed as agglomerates in the presence of tetanus toxoid antigen. The presence of tetanus antigen caused the formation of antigen-nanobioprobe antigen complex. Identification of this complex by HRP-bound antibody confirmed the specificity of nanobioprobe. Tetanus magnetic nanobioprobe with a diagnostic limit of 10 ng ml-1of tetanus antigen in a short time can be a good tool in LOC devices and microfluidic chips.
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Affiliation(s)
- Farzaneh Karkhaneh
- Institute for Convergence Science & Technology, Islamic Azad University Science and Research Branch, Tehran, Iran
| | - Ziba Karimi Sadr
- Institute for Convergence Science & Technology, Islamic Azad University Science and Research Branch, Tehran, Iran
| | - Ahmad Molai Rad
- Institute for Convergence Science & Technology, Islamic Azad University Science and Research Branch, Tehran, Iran
| | - Adele Divsalar
- Faculty of Biological Science, Kharazmi University, Tehran, Iran
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3
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Bilal M, Iqbal HM, Adil SF, Shaik MR, Abdelgawad A, Hatshan MR, Khan M. Surface-coated magnetic nanostructured materials for robust bio-catalysis and biomedical applications-A review. J Adv Res 2022; 38:157-177. [PMID: 35572403 PMCID: PMC9091734 DOI: 10.1016/j.jare.2021.09.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 09/27/2021] [Accepted: 09/30/2021] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Enzymes based bio-catalysis has wide range of applications in various chemical and biological processes. Thus, the process of enzymes immobilization on suitable support to obtain highly active and stable bio-catalysts has great potential in industrial applications. Particularly, surface-modified magnetic nanomaterials have garnered a special interest as versatile platforms for biomolecules/enzyme immobilization. AIM OF REVIEW This review spotlights recent progress in the immobilization of various enzymes onto surface-coated multifunctional magnetic nanostructured materials and their derived nano-constructs for multiple applications. Conclusive remarks, technical challenges, and insightful opinions on this field of research which are helpful to expand the application prospects of these materials are also given with suitable examples. KEY SCIENTIFIC CONCEPTS OF REVIEW Nanostructured materials, including surface-coated magnetic nanoparticles have recently gained immense significance as suitable support materials for enzyme immobilization, due to their large surface area, unique functionalities, and high chemical and mechanical stability. Besides, magnetic nanoparticles are less expensive and offers great potential in industrial applications due to their easy recovery and separation form their enzyme conjugates with an external magnetic field. Magnetic nanoparticles based biocatalytic systems offer a wide-working temperature, pH range, increased storage and thermal stabilities. So far, several studies have documented the application of a variety of surface modification and functionalization techniques to circumvent the aggregation and oxidation of magnetic nanoparticles. Surface engineering of magnetic nanoparticles (MNPs) helps to improve the dispersion stability, enhance mechanical and physicochemical properties, upgrade the surface activity and also increases enzyme immobilization capabilities and biocompatibility of the materials. However, several challenges still need to be addressed, such as controlled synthesis of MNPs and clinical aspects of these materials require consistent research from multidisciplinary scientists to realize its practical applications.
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Affiliation(s)
- Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China
- Corresponding authors.
| | - Hafiz M.N. Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey 64849, Mexico
| | - Syed Farooq Adil
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Kingdom of Saudi Arabia
| | - Mohammed Rafi Shaik
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Kingdom of Saudi Arabia
- Corresponding authors.
| | - Abdelatty Abdelgawad
- Department of Industrial Engineering, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Kingdom of Saudi Arabia
| | - Mohammad Rafe Hatshan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Kingdom of Saudi Arabia
| | - Mujeeb Khan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Kingdom of Saudi Arabia
- Corresponding authors.
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Abstract
Optical biosensors have exhibited worthwhile performance in detecting biological systems and promoting significant advances in clinical diagnostics, drug discovery, food process control, and environmental monitoring. Without complexity in their pretreatment and probable influence on the nature of target molecules, these biosensors have additional advantages such as high sensitivity, robustness, reliability, and potential to be integrated on a single chip. In this review, the state of the art optical biosensor technologies, including those based on surface plasmon resonance (SPR), optical waveguides, optical resonators, photonic crystals, and optical fibers, are presented. The principles for each type of biosensor are concisely introduced and particular emphasis has been placed on recent achievements. The strengths and weaknesses of each type of biosensor have been outlined as well. Concluding remarks regarding the perspectives of future developments are discussed.
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Affiliation(s)
- Chen Chen
- College of Information Science and Technology, Dalian Maritime University, Dalian, 116026, China.
| | - Junsheng Wang
- College of Information Science and Technology, Dalian Maritime University, Dalian, 116026, China.
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Wu L, Li Y, Gu N. Nano-sensing and nano-therapy targeting central players in iron homeostasis. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2020; 13:e1667. [PMID: 32893493 DOI: 10.1002/wnan.1667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 07/23/2020] [Accepted: 07/23/2020] [Indexed: 11/10/2022]
Abstract
Iron plays vital roles in many life activities and it is strictly controlled via elaborate metabolic system. Growing evidence has suggested that the dysfunctional iron homeostasis is implicated to many refractory diseases including cancers and neurodegenerations. Systemic and cellular iron are regulated through different pathways but are meanwhile interconnecting with each other via a few key regulators, whose abnormal expressions are often found to be the root causes of many iron disorders. Nano-sensing techniques have enabled the detection and monitoring of such central players, which provide rich information for the iron homeostasis profile through multiplexing and flexible designs. In addition to general sensing, nanoprobes are capable of target imaging and precise local access, which are particularly beneficial for revealing the conditions of intra-/extracellular environments. Nanomaterials have also been applied in some therapies, targeting the aberrant iron metabolism. Various iron uptake pathways have been utilized for target drug delivery and iron level manipulation, while abnormal iron content is notably useful in tumor killing. With brief introduction to the significance of iron homeostasis, this review includes recent works regarding the nanotechnology that has been applied in iron-related diagnostic and therapeutic applications. This article is categorized under: Diagnostic Tools > Biosensing Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease Diagnostic Tools > in vivo Nanodiagnostics and Imaging.
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Affiliation(s)
- Linyuan Wu
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences & Medical Engineering, Southeast University, Nanjing, China
| | - Yan Li
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences & Medical Engineering, Southeast University, Nanjing, China
| | - Ning Gu
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences & Medical Engineering, Southeast University, Nanjing, China
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6
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Zhang X, Du P, Cui X, Chen G, Wang Y, Zhang Y, Abd El-Aty AM, Hacımüftüoğlu A, Wang J, He H, Jin M, Hammock B. A sensitive fluorometric bio-barcodes immunoassay for detection of triazophos residue in agricultural products and water samples by iterative cycles of DNA-RNA hybridization and dissociation of fluorophores by Ribonuclease H. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 717:137268. [PMID: 32084695 PMCID: PMC7938870 DOI: 10.1016/j.scitotenv.2020.137268] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 02/10/2020] [Accepted: 02/10/2020] [Indexed: 05/10/2023]
Abstract
Although the toxicity of triazophos is high and it has been pulled from the market in many countries; it is still widely used and frequently detected in agricultural products. While conventional analyses have been routinely used for the quantification and monitoring of triazophos residues, those for detecting low residual levels are deemed necessary. Therefore, we developed a novel and sensitive fluorometric signal amplification immunoassay employing bio-barcodes for the quantitative analysis of triazophos residues in foodstuffs and surface water. Herein, monoclonal antibodies (mAbs) attached to gold nanoparticles (AuNPs) were coated with DNA oligonucleotides (used as a signal generator), and a complementary fluorogenic RNA was used for signal amplification. The system generated detection signals through DNA-RNA hybridization and subsequent dissociation of fluorophores by Ribonuclease H (RNase H). It has to be noted that RNase H can only disintegrate the RNA in DNA-RNA duplex, but not cleave single or double-stranded DNA. Hence, with iterative cycles of DNA-RNA hybridization, sufficient strong signal was obtained for reliable detection of residues. Furthermore, this method enables quantitative detection of triazophos residues through fluorescence intensity measurements. The competitive immunoassay shows a wide linear range of 0.01-100 ng/mL with a limit of detection (LOD) of 0.0032 ng/mL. The assay substantially meets the demand for the low residue detection of triazophos residues in agricultural products and water samples. Accuracy (expressed as spiked recovery %) and coefficient of variation (CV) were ranged from 73.4% to 116% and 7.04% to 17.4%, respectively. The proposed bio-barcodes immunoassay has the advantages of being stable, reproducible, and reliable for residue detection. In sum, the present study provides a novel approach for detection of small molecules in various sample matrices.
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Affiliation(s)
- Xiuyuan Zhang
- College of Life Sciences, YanTai University, Yantai 264005, China; Key Laboratory of Agro-product Quality and Food Safety, Institute of Quality Standard &Testing Technology for Agro-Products, Chinses Academy of Agricultural Science, Beijing 100081, China
| | - Pengfei Du
- Key Laboratory of Agro-product Quality and Food Safety, Institute of Quality Standard &Testing Technology for Agro-Products, Chinses Academy of Agricultural Science, Beijing 100081, China
| | - Xueyan Cui
- Key Laboratory of Agro-product Quality and Food Safety, Institute of Quality Standard &Testing Technology for Agro-Products, Chinses Academy of Agricultural Science, Beijing 100081, China
| | - Ge Chen
- Key Laboratory of Agro-product Quality and Food Safety, Institute of Quality Standard &Testing Technology for Agro-Products, Chinses Academy of Agricultural Science, Beijing 100081, China
| | - Yuanshang Wang
- Key Laboratory of Agro-product Quality and Food Safety, Institute of Quality Standard &Testing Technology for Agro-Products, Chinses Academy of Agricultural Science, Beijing 100081, China
| | - Yudan Zhang
- Key Laboratory of Agro-product Quality and Food Safety, Institute of Quality Standard &Testing Technology for Agro-Products, Chinses Academy of Agricultural Science, Beijing 100081, China
| | - A M Abd El-Aty
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt; Department of Medical Pharmacology, Medical Faculty, Ataturk University, 25240 Erzurum, Turkey
| | - Ahmet Hacımüftüoğlu
- Department of Medical Pharmacology, Medical Faculty, Ataturk University, 25240 Erzurum, Turkey
| | - Jing Wang
- Key Laboratory of Agro-product Quality and Food Safety, Institute of Quality Standard &Testing Technology for Agro-Products, Chinses Academy of Agricultural Science, Beijing 100081, China
| | - Hongjun He
- College of Life Sciences, YanTai University, Yantai 264005, China.
| | - Maojun Jin
- Key Laboratory of Agro-product Quality and Food Safety, Institute of Quality Standard &Testing Technology for Agro-Products, Chinses Academy of Agricultural Science, Beijing 100081, China; Department of Entomology & Nematology and the UC Davis Comprehensive Cancer Center, Davis, CA 95616, USA.
| | - Bruce Hammock
- Department of Entomology & Nematology and the UC Davis Comprehensive Cancer Center, Davis, CA 95616, USA
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7
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Monitoring of drug resistance towards reducing the toxicity of pharmaceutical compounds: Past, present and future. J Pharm Biomed Anal 2020; 186:113265. [PMID: 32283481 DOI: 10.1016/j.jpba.2020.113265] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 03/15/2020] [Accepted: 03/16/2020] [Indexed: 12/12/2022]
Abstract
Drug resistance is worldwide health care crisis which decrease drug efficacy and developing toxicities. Effective resistance detection techniques could alleviate treatment cost and mortality associated with this crisis. In this review, the conventional and modern analysis methods for monitoring of drug resistance are presented. Also, various types of emerging rapid and sensitive techniques including electrochemical, electrical, optical and nano-based methods for the screening of drug resistance were discussed. Applications of various methods for the sensitive and rapid detection of drug resistance are investigated. The review outlines existing key issues in the determination which must be overcome before any of these techniques becomes a feasible method for the rapid detection of drug resistance. In this review, the roles of nanomaterials on development of novel methods for the monitoring of drug resistance were presented. Also, limitations and challenges of conventional and modern methods were discussed.
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8
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Iriarte-Mesa C, López YC, Matos-Peralta Y, de la Vega-Hernández K, Antuch M. Gold, Silver and Iron Oxide Nanoparticles: Synthesis and Bionanoconjugation Strategies Aimed at Electrochemical Applications. Top Curr Chem (Cham) 2020; 378:12. [PMID: 31907672 DOI: 10.1007/s41061-019-0275-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 12/13/2019] [Indexed: 12/22/2022]
Abstract
Nanomaterials have revolutionized the sensing and biosensing fields, with the development of more sensitive and selective devices for multiple applications. Gold, silver and iron oxide nanoparticles have played a particularly major role in this development. In this review, we provide a general overview of the synthesis and characteristics of gold, silver and iron oxide nanoparticles, along with the main strategies for their surface functionalization with ligands and biomolecules. Finally, different architectures suitable for electrochemical applications are reviewed, as well as their main fabrication procedures. We conclude with some considerations from the authors' perspective regarding the promising use of these materials and the challenges to be faced in the near future.
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Affiliation(s)
- Claudia Iriarte-Mesa
- Laboratorio de Química Bioinorgánica, Departamento de Química General e Inorgánica, Facultad de Química, Universidad de La Habana, Zapata y G, Vedado, Plaza de la Revolución, 10 400, La Habana, Cuba
| | - Yeisy C López
- Laboratorio de Química Bioinorgánica, Departamento de Química General e Inorgánica, Facultad de Química, Universidad de La Habana, Zapata y G, Vedado, Plaza de la Revolución, 10 400, La Habana, Cuba.,Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Calzada Legaria 694, Col. Irrigación, 11 500, Ciudad de México, Mexico
| | - Yasser Matos-Peralta
- Laboratorio de Química Bioinorgánica, Departamento de Química General e Inorgánica, Facultad de Química, Universidad de La Habana, Zapata y G, Vedado, Plaza de la Revolución, 10 400, La Habana, Cuba
| | | | - Manuel Antuch
- Unité de Chimie et Procédés, École Nationale Supérieure de Techniques Avancées (ENSTA), Institut Polytechnique de Paris, 828 Boulevard des Maréchaux, 91120, Palaiseau, France.
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9
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Abstract
: Nanomaterial biosensors have revolutionized the entire scientific, technology, biomedical, materials science, and engineering fields. Among all nanomaterials, magnetic nanoparticles, microparticles, and beads are unique in offering facile conjugation of biorecognition probes for selective capturing of any desired analytes from complex real sample matrices (e.g., biofluids such as whole blood, serum, urine and saliva, tissues, food, and environmental samples). In addition, rapid separation of the particle-captured analytes by the simple use of a magnet for subsequent detection on a sensor unit makes the magnetic particle sensor approach very attractive. The easy magnetic isolation feature of target analytes is not possible with other inorganic particles, both metallic (e.g., gold) and non-metallic (e.g., silica), which require difficult centrifugation and separation steps. Magnetic particle biosensors have thus enabled ultra-low detection with ultra-high sensitivity that has traditionally been achieved only by radioactive assays and other tedious optical sources. Moreover, when traditional approaches failed to selectively detect low-concentration analytes in complex matrices (e.g., colorimetric, electrochemistry, and optical methods), magnetic particle-incorporated sensing strategies enabled sample concentration into a defined microvolume of large surface area particles for a straightforward detection. The objective of this article is to highlight the ever-growing applications of magnetic materials for the detection of analytes present in various real sample matrices. The central idea of this paper was to show the versatility and advantages of using magnetic particles for a variety of sample matrices and analyte types and the adaptability of different transducers with the magnetic particle approaches.
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10
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Waller AW, Toc M, Rigsby DJ, Gaytán-Martínez M, Andrade JE. Development of a Paper-Based Sensor Compatible with a Mobile Phone for the Detection of Common Iron Formulas Used in Fortified Foods within Resource-Limited Settings. Nutrients 2019; 11:nu11071673. [PMID: 31330891 PMCID: PMC6682910 DOI: 10.3390/nu11071673] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 07/17/2019] [Accepted: 07/18/2019] [Indexed: 02/08/2023] Open
Abstract
A lack of quality control tools limits the enforcement of fortification policies. In alignment with the World Health Organization’s ASSURED criteria (affordable, sensitive, specific, user-friendly, rapid and robust, equipment-free, and deliverable), a paper-based assay that interfaces with a smartphone application for the quantification of iron fortificants is presented. The assay is based on the Ferrozine colorimetric method. The reaction started after deposition of the 5 µL aqueous sample and drying. After developing color, pixel intensity values were obtained using a smartphone camera and image processing software or a mobile application, Nu3px. From these values, the actual iron concentration from ferrous sulfate and ferrous fumarate was calculated. The limits of detection, quantification, linearity, range, and errors (systematic and random) were ascertained. The paper-based values from real samples (wheat flour, nixtamalized corn flour, and infant formula) were compared against atomic emission spectroscopy. The comparison of several concentrations of atomic iron between the spectrophotometric and paper-based assays showed a strong positive linear correlation (y = 47.01x + 126.18; R2 = 0.9932). The dynamic range (5.0–100 µg/mL) and limit of detection (3.691 µg/mL) of the paper-based assay are relevant for fortified food matrices. Random and systematic errors were 15.9% and + 8.65 µg/g food, respectively. The concept can be applied to limited-resource settings to measure iron in fortified foods.
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Affiliation(s)
- Anna W Waller
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Marco Toc
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Dylan J Rigsby
- School of Art and Design, Department of Industrial Design, University of Illinois at Urbana-Champaign, Champaign, IL 61820, USA
| | - Marcela Gaytán-Martínez
- Programa de Posgrado en Alimentos del Centro de la República (PROPAC), Research and Graduate Studies in Food Science, School of Chemistry, Universidad Autónoma de Querétaro, Centro Universitario Cerro de las Campanas s/n Col. Centro, Querétaro 76000, Mexico
| | - Juan E Andrade
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
- Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
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11
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Andra S, Balu SK, Jeevanandham J, Muthalagu M, Vidyavathy M, Chan YS, Danquah MK. Phytosynthesized metal oxide nanoparticles for pharmaceutical applications. Naunyn Schmiedebergs Arch Pharmacol 2019; 392:755-771. [PMID: 31098696 DOI: 10.1007/s00210-019-01666-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 05/06/2019] [Indexed: 01/19/2023]
Abstract
Developments in nanotechnology field, specifically, metal oxide nanoparticles have attracted the attention of researchers due to their unique sensing, electronic, drug delivery, catalysis, optoelectronics, cosmetics, and space applications. Physicochemical methods are used to fabricate nanosized metal oxides; however, drawbacks such as high cost and toxic chemical involvement prevail. Recent researches focus on synthesizing metal oxide nanoparticles through green chemistry which helps in avoiding the involvement of toxic chemicals in the synthesis process. Bacteria, fungi, and plants are the biological sources that are utilized for the green nanoparticle synthesis. Due to drawbacks such as tedious maintenance and the time needed for the nanoparticle formation, plant extracts are widely used in nanoparticle production. In addition, plants are available all over the world and phytosynthesized nanoparticles show comparatively less toxicity towards mammalian cells. Secondary metabolites including flavonoids, terpenoids, and saponins are present in plant extracts, and these are highly responsible for nanoparticle formation and reduction of toxicity. Hence, this article gives an overview of recent developments in the phytosynthesis of metal oxide nanoparticles and their toxic analysis in various cells and animal models. Also, their possible mechanism in normal and cancer cells, pharmaceutical applications, and their efficiency in disease treatment are also discussed.
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Affiliation(s)
- Swetha Andra
- Department of Textile Technology, Anna University, Chennai, Tamil Nadu, 600025, India
| | - Satheesh Kumar Balu
- Department of Ceramic Technology, Anna University, Chennai, Tamil Nadu, 600025, India
| | - Jaison Jeevanandham
- Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University, CDT 250, 98009, Miri, Sarawak, Malaysia
| | - Murugesan Muthalagu
- Department of Textile Technology, Anna University, Chennai, Tamil Nadu, 600025, India
| | - Manisha Vidyavathy
- Department of Ceramic Technology, Anna University, Chennai, Tamil Nadu, 600025, India
| | - Yen San Chan
- Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University, CDT 250, 98009, Miri, Sarawak, Malaysia
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Wang Z, Yao X, Wang R, Ji Y, Yue T, Sun J, Li T, Wang J, Zhang D. Label-free strip sensor based on surface positively charged nitrogen-rich carbon nanoparticles for rapid detection of Salmonella enteritidis. Biosens Bioelectron 2019; 132:360-367. [DOI: 10.1016/j.bios.2019.02.061] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 02/18/2019] [Accepted: 02/20/2019] [Indexed: 02/06/2023]
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13
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Bu T, Huang Q, Yan L, Zhang W, Dou L, Huang L, Yang Q, Zhao B, Yang B, Li T, Wang J, Zhang D. Applicability of biological dye tracer in strip biosensor for ultrasensitive detection of pathogenic bacteria. Food Chem 2019; 274:816-821. [DOI: 10.1016/j.foodchem.2018.09.066] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 08/08/2018] [Accepted: 09/10/2018] [Indexed: 12/27/2022]
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14
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An infrared IgG immunoassay based on the use of a nanocomposite consisting of silica coated Fe 3O 4 superparticles. Mikrochim Acta 2019; 186:99. [PMID: 30631954 DOI: 10.1007/s00604-018-3219-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 12/28/2018] [Indexed: 02/01/2023]
Abstract
A reliable, rapid and ultrasensitive immunoassay is described for determination of immunoglobulin G (IgG). It is making use of biofunctional magnetite (Fe3O4) superparticles coated with SiO2 and serving as an infrared (IR) probe. The unique IR fingerprint signals originating from the transverse and longitudinal phonon modes, respectively, of the asymmetric stretching of the Si-O-Si bridges display a satisfactory resistance to optical interference from the environment. The adoption of Fe3O4 superparticles instead of Fe3O4 nanoparticles as the magnetic core warrants a controllable structure and a strong magnetic response. This facilitates the efficient purification of the probes and the alleviation of the interfacial resistance between the liquid-solid interfaces by using a magnet. The gold-coated substrate was used to immobilize goat-anti-human IgG. The analyte (human IgG) was incubated with the IR probes, and then captured by the substrate immobilized antibody with the assistance of an external magnetic field. The integral area of the IR absorption band between 1250 cm-1 - 900 cm-1 was chosen for quantitative assay. The limit of detection is 95 fM, which is two orders of magnitude better than that without the magnetic field. The assay time was shortened from 2 h to 1 min. High selectivity, specificity, and long-term stability of the immunoassay were achieved. The performance of the assay when analyzing blood samples confirmed the practicability of the method. Graphical abstract Schematic presentation of the infrared (IR) immunoassay based on Fe3O4 superparticle@SiO2 nanocomposites. The assistance of an external magnetic field reduces the incubation time and improves the detection sensitivity.
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15
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Zhu N, Ji H, Yu P, Niu J, Farooq MU, Akram MW, Udego IO, Li H, Niu X. Surface Modification of Magnetic Iron Oxide Nanoparticles. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E810. [PMID: 30304823 PMCID: PMC6215286 DOI: 10.3390/nano8100810] [Citation(s) in RCA: 214] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 09/26/2018] [Accepted: 10/05/2018] [Indexed: 12/11/2022]
Abstract
Functionalized iron oxide nanoparticles (IONPs) are of great interest due to wide range applications, especially in nanomedicine. However, they face challenges preventing their further applications such as rapid agglomeration, oxidation, etc. Appropriate surface modification of IONPs can conquer these barriers with improved physicochemical properties. This review summarizes recent advances in the surface modification of IONPs with small organic molecules, polymers and inorganic materials. The preparation methods, mechanisms and applications of surface-modified IONPs with different materials are discussed. Finally, the technical barriers of IONPs and their limitations in practical applications are pointed out, and the development trends and prospects are discussed.
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Affiliation(s)
- Nan Zhu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Haining Ji
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Peng Yu
- Institute of Fundamental and Frontier Science, University of Electronic Science and Technology, Chengdu 610054, China.
| | - Jiaqi Niu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - M U Farooq
- Institute of Fundamental and Frontier Science, University of Electronic Science and Technology, Chengdu 610054, China.
| | - M Waseem Akram
- Institute of Fundamental and Frontier Science, University of Electronic Science and Technology, Chengdu 610054, China.
| | - I O Udego
- Institute of Fundamental and Frontier Science, University of Electronic Science and Technology, Chengdu 610054, China.
| | - Handong Li
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Xiaobin Niu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China.
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16
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Abstract
Coinfections involving viruses are being recognized to influence the disease pattern that occurs relative to that with single infection. Classically, we usually think of a clinical syndrome as the consequence of infection by a single virus that is isolated from clinical specimens. However, this biased laboratory approach omits detection of additional agents that could be contributing to the clinical outcome, including novel agents not usually considered pathogens. The presence of an additional agent may also interfere with the targeted isolation of a known virus. Viral interference, a phenomenon where one virus competitively suppresses replication of other coinfecting viruses, is the most common outcome of viral coinfections. In addition, coinfections can modulate virus virulence and cell death, thereby altering disease severity and epidemiology. Immunity to primary virus infection can also modulate immune responses to subsequent secondary infections. In this review, various virological mechanisms that determine viral persistence/exclusion during coinfections are discussed, and insights into the isolation/detection of multiple viruses are provided. We also discuss features of heterologous infections that impact the pattern of immune responsiveness that develops.
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17
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Recent advances in biological sample preparation methods coupled with chromatography, spectrometry and electrochemistry analysis techniques. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.02.005] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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18
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Zhang R, Sung SHP, Feng G, Zhang CJ, Kenry, Tang BZ, Liu B. Aggregation-Induced Emission Probe for Specific Turn-On Quantification of Soluble Transferrin Receptor: An Important Disease Marker for Iron Deficiency Anemia and Kidney Diseases. Anal Chem 2017; 90:1154-1160. [PMID: 29271190 DOI: 10.1021/acs.analchem.7b03694] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Transferrin receptor (TfR) is overexpressed on the surface of many cancer cells due to its vital roles in iron circulation and cellular respiration. Soluble transferrin receptor (sTfR), a truncated extracellular form of TfR in serum, is an important marker of iron deficiency anemia (IDA) and bone marrow failure in cancer patients. More recently, sTfR level in urine has been related to a specific kidney disease of Henoch-Schönlein purpura nephritis (HSPN). Despite the universal significance of sTfR, there is still a lack of a simple and sensitive method for the quantification of sTfR. Furthermore, it is desirable to have a probe that can detect both TfR and sTfR for further comparison study. In this work, we developed a water-soluble AIE-peptide conjugate with aggregation-induced emission (AIE) characteristics. Taking advantage of the negligible emission from molecularly dissolved tetraphenylethene (TPE), probe TPE-2T7 was used for the light-up detection of sTfR. The probe itself is nonemissive in aqueous solution, but it turns on its fluorescence upon interaction with sTfR to yield a detection limit of 0.27 μg/mL, which is much lower than the sTfR level in IDA patients. Furthermore, a proof-of-concept experiment validates the potential of the probe for diagnosis of HSPN by urine test.
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Affiliation(s)
- Ruoyu Zhang
- Department of Chemical and Biomolecular Engineering, National University of Singapore , 4 Engineering Drive 4, Singapore 117585
| | - Simon H P Sung
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration and Reconstruction, HKUST Jockey Club Institute for Advanced Study, Institute of Molecular Functional Materials, Division of Biomedical Engineering, State Key Laboratory of Molecular Neuroscience, Division of Life Science, Hong Kong University of Science and Technology , Kowloon, Clear Water Bay, Hong Kong
| | - Guangxue Feng
- Department of Chemical and Biomolecular Engineering, National University of Singapore , 4 Engineering Drive 4, Singapore 117585
| | - Chong-Jing Zhang
- Department of Chemical and Biomolecular Engineering, National University of Singapore , 4 Engineering Drive 4, Singapore 117585
| | - Kenry
- Department of Chemical and Biomolecular Engineering, National University of Singapore , 4 Engineering Drive 4, Singapore 117585
| | - Ben Zhong Tang
- Department of Chemistry, Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration and Reconstruction, HKUST Jockey Club Institute for Advanced Study, Institute of Molecular Functional Materials, Division of Biomedical Engineering, State Key Laboratory of Molecular Neuroscience, Division of Life Science, Hong Kong University of Science and Technology , Kowloon, Clear Water Bay, Hong Kong.,SCUT-HKUST Joint Research Laboratory, Guangdong Innovative Research Team, State Key Laboratory of Luminescent Materials & Devices, South China University of Technology , Guangzhou 510640, China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore , 4 Engineering Drive 4, Singapore 117585.,Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR) , 2 Fusionopolis Way, Innovis, Singapore 138634
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19
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Stimuli Responsive Polymer-Based 3D Optical Crystals for Sensing. Polymers (Basel) 2017; 9:polym9110436. [PMID: 30965852 PMCID: PMC6418830 DOI: 10.3390/polym9110436] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Revised: 08/23/2017] [Accepted: 08/25/2017] [Indexed: 11/16/2022] Open
Abstract
3D optical crystals have found their applications in sensing, actuation, optical devices, batteries, supercapacitors, etc. The 3D optical crystal devices are comprised of two main components: colloidal gels and nanoparticles. Nanoparticles self-assemble into face center cubic structures in colloidal gels. The inherent 3D optical crystal structure leads to display of structural colors on these devices following light impingement. As such, these optical properties have led to the utilization of these 3D optical crystals as self-reporting colorimetric sensors, which is the focus of this review paper. While there is extensive work done so far on these materials to exhaustively be covered in this review, we focus here in on: mechanism of color display, materials and preparation of 3D optical crystals, introduction of recent sensing examples, and combination of 3D optical crystals with molecular imprinting technology. The aim of this review is to familiarize the reader with recent developments in the area and to encourage further research in this field to overcome some of its challenges as well as to inspire creative innovations of these materials.
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20
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Peterson RD, Wilund KR, Cunningham BT, Andrade JE. Comparison of Methods Study between a Photonic Crystal Biosensor and Certified ELISA to Measure Biomarkers of Iron Deficiency in Chronic Kidney Disease Patients. SENSORS 2017; 17:s17102203. [PMID: 28946680 PMCID: PMC5677296 DOI: 10.3390/s17102203] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Revised: 09/21/2017] [Accepted: 09/22/2017] [Indexed: 12/30/2022]
Abstract
The total analytical error of a photonic crystal (PC) biosensor in the determination of ferritin and soluble transferrin receptor (sTfR) as biomarkers of iron deficiency anemia in chronic kidney disease (CKD) patients was evaluated against certified ELISAs. Antigens were extracted from sera of CKD patients using functionalized iron-oxide nanoparticles (fAb-IONs) followed by magnetic separation. Immuno-complexes were recognized by complementary detection Ab affixed to the PC biosensor surface, and their signals were followed using the BIND instrument. Quantification was conducted against actual protein standards. Total calculated error (TEcalc) was estimated based on systematic (SE) and random error (RE) and compared against total allowed error (TEa) based on established quality specifications. Both detection platforms showed adequate linearity, specificity, and sensitivity for biomarkers. Means, SD, and CV were similar between biomarkers for both detection platforms. Compared to ELISA, inherent imprecision was higher on the PC biosensor for ferritin, but not for sTfR. High SE or RE in the PC biosensor when measuring either biomarker resulted in TEcalc higher than the TEa. This did not influence the diagnostic ability of the PC biosensor to discriminate CKD patients with low iron stores. The performance of the PC biosensor is similar to certified ELISAs; however, optimization is required to reduce TEcalc.
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Affiliation(s)
- Ross D Peterson
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
| | - Kenneth R Wilund
- Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
- Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
| | - Brian T Cunningham
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
| | - Juan E Andrade
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
- Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
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21
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Chen W, Yu H, Sun F, Ornob A, Brisbin R, Ganguli A, Vemuri V, Strzebonski P, Cui G, Allen KJ, Desai SA, Lin W, Nash DM, Hirschberg DL, Brooks I, Bashir R, Cunningham BT. Mobile Platform for Multiplexed Detection and Differentiation of Disease-Specific Nucleic Acid Sequences, Using Microfluidic Loop-Mediated Isothermal Amplification and Smartphone Detection. Anal Chem 2017; 89:11219-11226. [PMID: 28819973 DOI: 10.1021/acs.analchem.7b02478] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
New tools are needed to enable rapid detection, identification, and reporting of infectious viral and microbial pathogens in a wide variety of point-of-care applications that impact human and animal health. We report the design, construction, and characterization of a platform for multiplexed analysis of disease-specific DNA sequences that utilizes a smartphone camera as the sensor in conjunction with a hand-held "cradle" that interfaces the phone with a silicon-based microfluidic chip embedded within a credit-card-sized cartridge. Utilizing specific nucleic acid sequences for four equine respiratory pathogens as representative examples, we demonstrated the ability of the system to utilize a single 15 μL droplet of test sample to perform selective positive/negative determination of target sequences, including integrated experimental controls, in approximately 30 min. Our approach utilizes loop-mediated isothermal amplification (LAMP) reagents predeposited into distinct lanes of the microfluidic chip, which when exposed to target nucleic acid sequences from the test sample, generates fluorescent products that when excited by appropriately selected light emitting diodes (LEDs), are visualized and automatically analyzed by a software application running on the smartphone microprocessor. The system achieves detection limits comparable to those obtained by laboratory-based methods and instruments. Assay information is combined with the information from the cartridge and the patient to populate a cloud-based database for epidemiological reporting of test results.
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Affiliation(s)
- Weili Chen
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Hojeong Yu
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Fu Sun
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Akid Ornob
- Department of Bioengineering, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Ryan Brisbin
- Center for Urban Waters & The School of Interdisciplinary Arts and Sciences, University of Washington Tacoma , Tacoma, Washington 98402, United States
| | - Anurup Ganguli
- Department of Bioengineering, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Vinay Vemuri
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Piotr Strzebonski
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Guangzhe Cui
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Karen J Allen
- School of Information Sciences, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Smit A Desai
- School of Information Sciences, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Weiran Lin
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - David M Nash
- Private veterinary practice , Lexington, Kentucky 40509, United States
| | - David L Hirschberg
- Center for Urban Waters & The School of Interdisciplinary Arts and Sciences, University of Washington Tacoma , Tacoma, Washington 98402, United States.,Readiness Acceleration and Innovation Network , Tacoma, Washington 98402, United States
| | - Ian Brooks
- School of Information Sciences, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Rashid Bashir
- Department of Bioengineering, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Brian T Cunningham
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States.,Department of Bioengineering, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
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22
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Xu J, Zhang QM, Zhao DX, Liu YR, Chen P, Lu GH, Xie HY. High sensitive detection method for protein by combining the magnetic separation with cation exchange based signal amplification. Talanta 2017; 168:91-99. [DOI: 10.1016/j.talanta.2017.03.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 02/26/2017] [Accepted: 03/06/2017] [Indexed: 01/11/2023]
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23
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Mayang Y, He X, Chen L, Zhang Y. Detection of transferrin by using a surface plasmon resonance sensor functionalized with a boronic acid monolayer. Mikrochim Acta 2017. [DOI: 10.1007/s00604-017-2275-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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24
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Vallejo D, Lee SH, Lee A. Functionalized Vesicles by Microfluidic Device. Methods Mol Biol 2017; 1572:489-510. [PMID: 28299707 DOI: 10.1007/978-1-4939-6911-1_31] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In recent years, lipid vesicles have become popular vehicles for the creation of biosensors. Vesicles can hold reaction components within a selective permeable membrane that provides an ideal environment for membrane protein biosensing elements. The lipid bilayer allows a protein to retain its native structure and function, and the membrane fluidity can allow for conformational changes and physiological interactions with target analytes. Here, we present two methods for the production of giant unilamellar vesicles (GUVs) within a microfluidic device that can be used as the basis for a biosensor. The vesicles are produced from water-in-oil-in-water (W/O/W) double emulsion templates using a nonvolatile oil phase. To create the GUVs, the oil can be removed via extraction with ethanol, or by altering the interfacial tension between the oil and carrier solution causing the oil to retract into a cap on one side of the structure, leaving behind an exposed lipid bilayer. Methods to integrate sensing elements and membrane protein pores onto the vesicles are also introduced in this work.
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Affiliation(s)
- Derek Vallejo
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, 92697 2715, USA
| | - Shih-Hui Lee
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, 92697 2715, USA
| | - Abraham Lee
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, 92697 2715, USA.
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25
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Ali Z, Wang J, Tang Y, Liu B, He N, Li Z. Simultaneous detection of multiple viruses based on chemiluminescence and magnetic separation. Biomater Sci 2017; 5:57-66. [DOI: 10.1039/c6bm00527f] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this report, a DNA hybridization based chemiluminescent detection method has been proposed for reliable detection of multiple pathogens. The use of surface modified magnetic nanoparticles can help to integrate this system into an automated platform for high throughput applications.
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Affiliation(s)
- Zeeshan Ali
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- P. R. China
| | - Jiuhai Wang
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- P. R. China
| | - Yongjun Tang
- School of Applied Chemistry and Biotechnology
- Shenzhen Polytechnic
- Shenzhen 518055
- P. R. China
| | - Bin Liu
- Department of Biomedical Engineering
- School of Basic Medical Sciences
- Nanjing Medical University
- Nanjing 210029
- China
| | - Nongyue He
- State Key Laboratory of Bioelectronics
- School of Biological Science and Medical Engineering
- Southeast University
- Nanjing 210096
- P. R. China
| | - Zhiyang Li
- Department of Clinical Laboratory
- the Affiliated Drum Tower Hospital of Nanjing University Medical School
- Nanjing 210008
- P. R. China
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26
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Peng W, Chen Y, Ai W, Zhang D. A Nanofluidic Biosensor Based on Nanoreplica Molding Photonic Crystal. NANOSCALE RESEARCH LETTERS 2016; 11:427. [PMID: 27664018 PMCID: PMC5035292 DOI: 10.1186/s11671-016-1644-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Accepted: 09/20/2016] [Indexed: 05/30/2023]
Abstract
A nanofluidic biosensor based on nanoreplica molding photonic crystal (PC) was proposed. UV epoxy PC was fabricated by nanoreplica molding on a master PC wafer. The nanochannels were sealed between the gratings on the PC surface and a taped layer. The resonance wavelength of PC-based nanofluidic biosensor was used for testing the sealing effect. According to the peak wavelength value of the sensor, an initial label-free experiment was realized with R6g as the analyte. When the PC-based biosensor was illuminated by a monochromatic light source with a specific angle, the resonance wavelength of the sensor will match with the light source and amplified the electromagnetic field. The amplified electromagnetic field was used to enhance the fluorescence excitation result. The enhancement effect was used for enhancing fluorescence excitation and emission when matched with the resonance condition. Alexa Fluor 635 was used as the target dye excited by 637-nm laser source on a configured photonic crystal enhanced fluorescence (PCEF) setup, and an initial PCEF enhancement factor was obtained.
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Affiliation(s)
- Wang Peng
- School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074 China
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801 USA
- Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801 USA
| | - Youping Chen
- School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Wu Ai
- School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074 China
| | - Dailin Zhang
- School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074 China
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27
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Li X, Chen L. Fluorescence Probe Based on an Amino-Functionalized Fluorescent Magnetic Nanocomposite for Detection of Folic Acid in Serum. ACS APPLIED MATERIALS & INTERFACES 2016; 8:31832-31840. [PMID: 27796090 DOI: 10.1021/acsami.6b10163] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A new fluorescence probe constructed with a multifunctional nanocomposite, Fe3O4-ZnS:Mn2+/SiO2-NH2, was successfully synthesized and then used to detect folic acid in real serum samples. The nanocomposite was characterized by fluorescence spectroscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, X-ray powder diffraction, and physical property measurement system. With the addition of analyte, the Fe3O4-ZnS:Mn2+/SiO2-NH2 composite and folic acid formed a new complex because cross-linking of the amino and carboxyl groups participated in the condensation reaction. Then, the energy of quantum dots was transferred to the complex and led to quenching of the fluorescence. Moreover, the fluorescence intensity decreased significantly as the concentration of folic acid increased, and the fluorescence quenching ratio F0/F was related to the folic acid concentration in the range from 0.1 to 5 μg mL-1. This method was used for detecting folic acid in real serum samples and gave recoveries in the range of 89.0%-96.0%, with relative standard deviations of 1.2%-3.9%. The detection limit was 9.6 ng mL-1 (S/N = 3). These satisfactory and simple results showed the great potential of this fluorescence probe in the field of pharmaceutical analysis.
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Affiliation(s)
- Xiaowan Li
- Department of Chemistry, College of Science, Northeast Forestry University , 26 Hexing Road, Harbin 150040, China
| | - Ligang Chen
- Department of Chemistry, College of Science, Northeast Forestry University , 26 Hexing Road, Harbin 150040, China
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28
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Wang X, Tu M, Tian B, Yi Y, Wei Z, Wei F. Synthesis of tumor-targeted folate conjugated fluorescent magnetic albumin nanoparticles for enhanced intracellular dual-modal imaging into human brain tumor cells. Anal Biochem 2016; 512:8-17. [PMID: 27523645 DOI: 10.1016/j.ab.2016.08.010] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 07/29/2016] [Accepted: 08/09/2016] [Indexed: 12/19/2022]
Abstract
Superparamagnetic iron oxide nanoparticles (SPIO NPs), utilized as carriers are attractive materials widely applied in biomedical fields, but target-specific SPIO NPs with lower toxicity and excellent biocompatibility are still lacking for intracellular visualization in human brain tumor diagnosis and therapy. Herein, bovine serum albumin (BSA) coated superparamagnetic iron oxide, i.e. γ-Fe2O3 nanoparticles (BSA-SPIO NPs), are synthesized. Tumor-specific ligand folic acid (FA) is then conjugated onto BSA-SPIO NPs to fabricate tumor-targeted NPs, FA-BSA-SPIO NPs as a contrast agent for MRI imaging. The FA-BSA-SPIO NPs are also labeled with fluorescein isothiocyanate (FITC) for intracellular visualization after cellular uptake and internalization by glioma U251 cells. The biological effects of the FA-BSA-SPIO NPs are investigated in human brain tumor U251 cells in detail. These results show that the prepared FA-BSA-SPIO NPs display undetectable cytotoxicity, excellent biocompatibility, and potent cellular uptake. Moreover, the study shows that the made FA-BSA-SPIO NPs are effectively internalized for MRI imaging and intracellular visualization after FITC labeling in the targeted U251 cells. Therefore, the present study demonstrates that the fabricated FITC-FA-BSA-SPIO NPs hold promising perspectives by providing a dual-modal imaging as non-toxic and target-specific vehicles in human brain tumor treatment in future.
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Affiliation(s)
- Xueqin Wang
- College of Bioengineering, Henan University of Technology, Zhengzhou, Henan 450001, PR China.
| | - Miaomiao Tu
- College of Bioengineering, Henan University of Technology, Zhengzhou, Henan 450001, PR China
| | - Baoming Tian
- School of Life Sciences, Zhengzhou University, Zhengzhou, Henan 450001, PR China
| | - Yanjie Yi
- College of Bioengineering, Henan University of Technology, Zhengzhou, Henan 450001, PR China
| | - ZhenZhen Wei
- School of Life Sciences, Zhengzhou University, Zhengzhou, Henan 450001, PR China
| | - Fang Wei
- School of Life Sciences, Zhengzhou University, Zhengzhou, Henan 450001, PR China.
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29
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Wang W, Ma P, Dong H, Krause HJ, Zhang Y, Willbold D, Offenhaeusser A, Gu Z. A magnetic nanoparticles relaxation sensor for protein–protein interaction detection at ultra-low magnetic field. Biosens Bioelectron 2016; 80:661-665. [DOI: 10.1016/j.bios.2016.02.037] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Revised: 02/02/2016] [Accepted: 02/13/2016] [Indexed: 01/26/2023]
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Magnetic-bead-based sub-femtomolar immunoassay using resonant Raman scattering signals of ZnS nanoparticles. Anal Bioanal Chem 2016; 408:5013-9. [PMID: 27173389 DOI: 10.1007/s00216-016-9601-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 04/15/2016] [Accepted: 04/25/2016] [Indexed: 10/21/2022]
Abstract
Highly sensitive, specific, and selective immunoassays are of great significance for not only clinical diagnostics but also food safety, environmental monitoring, and so on. Enzyme-linked immunosorbent assays and fluorescence-based and electrochemical immunoassays are important intensively investigated immunoassay techniques. However, they might suffer from low sensitivity or false-positive results. In this work, a simple, reliable, and ultrasensitive magnetic-bead-based immunoassay was performed using biofunctionalized ZnS semiconductor nanocrystals as resonant Raman probes. The resonant Raman scattering of ZnS nanocrystals displays evenly spaced multi-phonon resonant Raman lines with narrow bandwidths and has strong resistance to environmental variation due to the nature of the electron-phonon interaction, thus rendering reliable signal readout in the immunoassays. The superparamagnetic Fe3O4 nanoparticles facilitated greatly the separation, purification, and concentration processes. It is beneficial for both reducing the labor intensity and amplifying the detection signals. The immobilization of antibodies on the surface of magnetic beads, the preparation of resonant Raman probes, and the immunological recognition between the antibody and analyte all occurred in the liquid phase, which minimized the diffusion barriers and boundary layer constraints. All these factors contributed to the ultralow detection limit of human IgG, which was determined to be about 0.5 fM (∼0.08 pg/ml). It is nearly the highest sensitivity obtained for IgG detection. This work shall facilitate the design of nanoplatforms for ultrasensitive detections of proteins, DNAs, bacteria, explosives, and so on. Graphical abstract An ultrasensitive magnetic-bead-based immunoassay was performed using multi-phonon resonant Raman lines of ZnS nanoparticles as detection signals.
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Dias JT, Lama L, Gantelius J, Andersson-Svahn H. Minimizing antibody cross-reactivity in multiplex detection of biomarkers in paper-based point-of-care assays. NANOSCALE 2016; 8:8195-8201. [PMID: 27030365 DOI: 10.1039/c5nr09207h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Highly multiplexed immunoassays could allow convenient screening of hundreds or thousands of protein biomarkers simultaneously in a clinical sample such as serum or plasma, potentially allowing improved diagnostic accuracy and clinical management of many conditions such as autoimmune disorders, infections, and several cancers. Currently, antibody microarray-based tests are limited in part due to cross reactivity from detection antibody reagents. Here we present a strategy that reduces the cross-reactivity between nanoparticle-bound reporter antibodies through the application of ultrasound energy. By this concept, it was possible to achieve a sensitivity 10(3)-fold (5 pg mL(-1)) lower than when no ultrasound was applied (50 ng mL(-1)) for the simultaneous detection of three different antigens. The detection limits and variability achieved with this technique rival those obtained with other types of multiplex sandwich assays.
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Affiliation(s)
- J T Dias
- Division of Proteomics and Nanobiotechnology, Science for Life Laboratory, KTH Royal Institute of Technology, Sweden.
| | - L Lama
- Division of Proteomics and Nanobiotechnology, Science for Life Laboratory, KTH Royal Institute of Technology, Sweden.
| | - J Gantelius
- Division of Proteomics and Nanobiotechnology, Science for Life Laboratory, KTH Royal Institute of Technology, Sweden.
| | - H Andersson-Svahn
- Division of Proteomics and Nanobiotechnology, Science for Life Laboratory, KTH Royal Institute of Technology, Sweden.
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Signal Improvement Strategies for Fluorescence Detection of Biomacromolecules. J Fluoresc 2016; 26:1131-9. [DOI: 10.1007/s10895-016-1806-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 03/27/2016] [Indexed: 12/19/2022]
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